San Francisco 49ers' turf wars continue in new Levi's Stadium - Sports Illustrated
Inside the NFL turf debate: Injuries, safety measures, problems - ESPN
49ers' George Kittle, Nick Bosa join NFL Twitter in calling for safer fields – NBC Sports Bay Area & California
Purdy: 49ers' Levi's Stadium still plagued by turf problems – The Mercury News
NFL field surface intel: Grass vs. turf, owners, problems - ESPN
NFL field surface intel: Grass vs. turf, owners, problems - ESPN
Much-maligned field at Levi's Stadium gets Super Bowl makeover
Giants' Logan Ryan: Turf field causing too many injuries
Led by George Kittle and stout defense, 49ers bully Cowboys to stay unbeaten
I really think FieldTurf is a problem in the NFL,” Nick Bosa says. The NFL Players Association has presented data which found that players have a 28 percent increased rate of non-contact